I have a source delta table from which I have selectively granted access to a particular pool id(can be thought of a dummy user).

From the pool id interface, whenever I am running a select on any of the tables, even though it has access to, is failing because of the below error:

Error in SQL statement: KeyProviderException: Failure to initialize configuration com.databricks.backend.common.rpc.DatabricksExceptions$SQLExecutionException: Failure to initialize configuration

it was running fine, when suddenly this came up !! Not sure why. Not much is understandable from the error message expanded version.